Optimal Air Conditioner Modes in Summer and Winter for Energy Savings (Anaheim Guide)

Running your air conditioner efficiently is one of the easiest ways to reduce monthly bills without sacrificing comfort—especially in Anaheim, where temperatures can swing between hot afternoons and cool evenings. The key is choosing the right operating mode, setting realistic temperatures, and avoiding habits that force the system to work harder than necessary. Summer (cooling season): Use COOL mode for true temperature control, and aim for 76–78°F when you’re home. Each degree lower can noticeably increase energy use. If your unit has ECO mode, enable it to reduce compressor cycling and smooth out power consumption. Use FAN or AUTO fan instead of “High” all day—AUTO usually provides the best balance of comfort and efficiency. Dehumidification helps comfort, so DRY mode can be useful on muggy days; it removes moisture with less cooling, letting you feel comfortable at a slightly higher setpoint. Close blinds during peak sun hours and avoid frequent on/off switching; steady operation is typically more efficient. Winter (heating season): If you have a heat pump, use HEAT mode and set 68–70°F for occupied hours. At night or when away, lower the setpoint by 5–8°F. Avoid large “catch-up” jumps, which can trigger higher power use or auxiliary heat on some systems. Keep the fan on AUTO to prevent unnecessary airflow and heat loss. Year-round tips: Replace filters regularly, keep vents unblocked, and schedule maintenance to ensure proper refrigerant charge and coil cleanliness. A smart thermostat or timed schedules can lock in savings by matching comfort to your routine.